Ice Age
A long period during which ice sheets cover large parts of Earth
Real World Example
The Ice Age was important because it allowed humans to migrate to the Western Hemisphere via land bridges, like the Bering Strait, which were exposed due to lower sea levels. This migration led to the settlement and development of diverse cultures and civilizations, such as the Native American tribes. The idea of migration and adaptation during the Ice Age highlights the importance of environmental changes and their impact on human life, a concept still relevant today with climate change. For example, rising sea levels and changing weather patterns influence where people live and how they grow food. Understanding these past migrations and adaptations can help us address current challenges and plan for future environmental changes.